To see a snake or be bitten by one in your dream signifies hidden fears and worries that are threatening you. Your dream may be alerting you to something in your waking life that you are not aware of or that has not yet surfaced. The snake may also be seen as phallic and thus symbolize dangerous and forbidden sexuality.
Single-payer healthcare is a system in which the state, rather than private insurers, pays for all healthcare costs.
In a single-payer system, however, there are no private insurance companies to begin with. The government alone authorizes and pays for health benefits. The classic example of a single-payer system is the Great Britain's National Health Service; the NHS controls access to health care resources and even employs the health care providers. Canada offers a similar scheme.